Flint is a vanilla item in Minecraft and can be found whilst mining Gravel. When gravel is mined, there is a 10% chance that a single piece of flint will drop instead of the gravel block. When mined with a Fortune-enchanted tool, this chance is increased to 14% at Fortune I, 25% at Fortune II, and 100% at Fortune III. Gravel mined using a tool with silk touch will never produce flint.
For more information on Flint, please visit the Minecraft Wiki site HERE
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